Custom Wordpress Theme + Single Page Application

What do we do? Our German internet business is a website that publishes funny facebook content in our blog and on facebook itself. With our own facebook site we create user dialogs, make screenshots of the conversation and publish them (anonymized) on our channels. What is our problem? Since we cannot create only "real" content we wrote an application in angular.js which allows us to create our custom facebook conversations (same CSS styling) to make a screenshot of the fake conversation. Until now this process was very slow and the app doesnt work quite good. Many steps have to be done manually. What do we want? 1. We need a developer that can rebuild the app for us. We have a currently working solution that can either be built on or being built from scratch - what ever is best. Since our own website is based on wordpress, we need an API integration for the app since we want the app to be the only place we have to interact with when generating content. So when we created content, there should be a date- and time picker so that we can schedule a new post on wordpress. 2. Since the data structure of this kind of content is very unique, we already customized our blog posts with the "Advanced Custom Fields" plugin, that is available for free. The extra data within our posts can be accessed by wordpress themes just like post title or a header image. We already began to design and write our own custom theme to display the posts accurately. However this is an open task and we'd like to source it our to whomever thinks he can do it ;-) We are happy to hear from you! Have a nice day :-)